Ponències/Comunicacions de congressoshttp://hdl.handle.net/2117/3304
Sun, 02 Aug 2015 20:57:50 GMT2015-08-02T20:57:50ZRelationship between climate variability indices and airborne pollination in Catalonia (NE Iberian Peninsula)http://hdl.handle.net/2117/27348
Relationship between climate variability indices and airborne pollination in Catalonia (NE Iberian Peninsula)
Alarcón Jordán, Marta; Belmonte, Jordina; Majeed, Husam Tareq; Periago Oliver, M. Cristina; Izquierdo Miguel, Rebeca
Here we explore the effect of climatic variability on the airborne pollen series recorded in Catalonia (NE Iberian Peninsula) considered of high interest due to abundance, landscape importance and/or allergenic significance. In this sense, the relationship between the annual and winter (December to March) phases of the North Atlantic Oscillation (NAO), the Western Mediterranean Oscillation (WeMO) and the Arctic Oscillation (AO) and the Annual Pollen Index (API), the start, the end and the length of the pollination seasons of 22 taxa collected at 6 aerobiological stations in Catalonia during the 18 years-period 1994-2011 have been computed. In addition, daily back-trajectories cluster analysis has been carried out in order to determine the influence of climatic indices on the main atmospheric transport routes frequencies and the long range pollen transport. Our aim is to determine the respective vulnerability of taxa to climate variability, taking also into account the pollen provenance area.
Climatic indices showed significant negative correlations with the parameters API (except for Corylus) and pollination start (except for Ambrosia, Castanea, Fagus and Betula, the latter being Eurosiberian taxa often long range transported) of most taxa, while significant positive correlations with the end of the pollination period of most taxa. The most vulnerable taxa (more significant correlations) with regard to API were Corylus, Olea, Platanus and Quercus deciduous type.
Wed, 01 Jan 2014 00:00:00 GMThttp://hdl.handle.net/2117/273482014-01-01T00:00:00ZEntorn virtual d’aprenentatge autònomhttp://hdl.handle.net/2117/11946
Entorn virtual d’aprenentatge autònom
Periago Oliver, M. Cristina; Jaen Herbera, Javier; Bohigas Janoher, Xavier; Pejuan Alcobé, Arcadi
En aquesta ponència presentem un Entorn Virtual d’Aprenentatge (EVA) dissenyat per fomentar l’aprenentatge autònom [1,2,3]. Es tracta d’una activitat dirigida en la qual se suggereixen les accions que l’estudiant ha de seguir per aprendre els conceptes relacionats amb la resolució de circuits elèctrics de corrent continu mitjançant l’aplicació de les lleis de Kirchhoff. Aquesta activitat forma part del curs de l’assignatura d’Electromagnetisme de les titulacions d’Enginyeria Industrial i Enginyeria Química de la UPC.
Quan els estudiants van finalitzar l’activitat d’autoaprenentatge proposada, se’ls va demanar de respondre una enquesta d’opinió que ha estat analitzada i valorada.
Fri, 01 Jan 2010 00:00:00 GMThttp://hdl.handle.net/2117/119462010-01-01T00:00:00ZThe Problem of Inconsistency in Reasoning in Engineering Education – A Case Study about the Mental Model of Soundhttp://hdl.handle.net/2117/10173
The Problem of Inconsistency in Reasoning in Engineering Education – A Case Study about the Mental Model of Sound
Pejuan Alcobé, Arcadi; Bohigas Janoher, Xavier; Jaen Herbera, Javier; Periago Oliver, M. Cristina
Every planning of an efficient teaching has the aim of achieving satisfactory
learning outcomes. From a constructivistic point of view, it is a commonly
accepted fact that such a planning has to take into account the prior ideas that
students bring to the class. In order to know them, we carried out a survey
about the prior ideas on the nature of sound that our fifteen third-year
engineering students had at the begin of an elective subject on acoustics. We
used a questionnaire where the students had to express their prior ideas with
their own words. Although the students expressed scientifically accepted ideas
in about 2/3 of the individual questions on a whole, a cross comparison
between each student’s answers for the different scenarios revealed a great
number of inconsistencies in the mental model of the nature of sound (wave
model): only about 1/3 of our students were consistent in all these scenarios.
The inconsistency in their reasoning was still clearer when each student had to
apply his/her respective mental model about sound to several properties of
sound, in particular the relationship between pitch and distance travelled by
sound. We analyse the state of the art in the literature about the issue of
students’ consistency, and we consider some proposals suggested in the
literature, which we apply in part in our own teaching resources, in order to
overcome this inconsistency problem.
Fri, 01 Jan 2010 00:00:00 GMThttp://hdl.handle.net/2117/101732010-01-01T00:00:00ZRedesigning a hypertextual course about Acousticshttp://hdl.handle.net/2117/10081
Redesigning a hypertextual course about Acoustics
López Simó, Víctor; Pejuan Alcobé, Arcadi
When one decides to design on-line educational materials, he have to bear in mind multiple dimensions, such as the non-linearity of the hypertext, the use of embedded multimedia languages and the interactivity between learners and educational tools. The Internet and the Information and Communication Technologies provide a challenge to develop all these dimensions in order to enhance web-based learning. The AFINET project (Learning of Physics through the Internet) is intended to know which transformations of a classic linear text on Physics education need to be done to develop hypertextual materials.
Fri, 01 Jan 2010 00:00:00 GMThttp://hdl.handle.net/2117/100812010-01-01T00:00:00ZIndependent Learning in a Virtual Environmenthttp://hdl.handle.net/2117/9273
Independent Learning in a Virtual Environment
Periago Oliver, M. Cristina; Jaen Herbera, Javier; Bohigas Janoher, Xavier; Pejuan Alcobé, Arcadi
In this paper we will describe a Virtual Learning Environment designed to promote selfdirected
learning. We will analyse the results of the opinion survey and evaluation of the
activity developed in the environment. This activity was performed by students without
teacher intervention and it is part of a classroom course of Electromagnetism in the
second year of Industrial and Chemical Engineering. In this particular case it deals with
the concepts related to electrical circuits by applying Kirchhoff’s laws.
Fri, 01 Jan 2010 00:00:00 GMThttp://hdl.handle.net/2117/92732010-01-01T00:00:00ZSemi-virtual classroom for physics contentshttp://hdl.handle.net/2117/9268
Semi-virtual classroom for physics contents
Jaen Herbera, Javier; Bohigas Janoher, Xavier; Novell, M.
Some years ago, it was believed that the learning process would eventually become mostly virtual. ICT tools were
therefore designed with this scenario in mind. Nevertheless, today’s learning process is still predominantly faceto-
face; at most, we have seen a shift towards blended learning. Today we are in the process of incorporating ICT
tools both inside and outside of the classroom. In this paper, we explore how contents—specifically physics
contents—can be used optimally either inside or outside of the classroom.
Tue, 01 Jan 2008 00:00:00 GMThttp://hdl.handle.net/2117/92682008-01-01T00:00:00ZA multimedia-based course to learn basic acoustics through the Internet: description and evaluationhttp://hdl.handle.net/2117/9267
A multimedia-based course to learn basic acoustics through the Internet: description and evaluation
Pejuan Alcobé, Arcadi; Bohigas Janoher, Xavier; Jaen Herbera, Javier; Periago Oliver, M. Cristina
A course on Basic Acoustics has been implemented as an Internet site with multimedia resources such as Flash animations, video clips, etc. Multimedia resources are particularly suitable for acoustics, due to the special role played by sound. The constructivistic model of learning within the EHEA framework was taken as the most suitable approach. The students’ overall evaluation has been positive, especially as regards the embedded multimedia resources. Furthermore, many comments taken from their evaluations and
assignments have helped to correct deficiencies and to improve the course.
Thu, 01 Jan 2009 00:00:00 GMThttp://hdl.handle.net/2117/92672009-01-01T00:00:00Z